Operational Data Checking

An automatic data checking system has been implemented at ECMWF to trigger warnings in case of anomalies affecting the quality or the availability of the data assimilated by the model. Selected statistical parameters (number of observations, bias correction, and mean bias-corrected background, analysis departures and probability of gross error) are checked against an expected range. An appropriate alert message (including a time series plot) is generated if statistics are outside the specified ranges. A severity level (slight, considerable, severe) is assigned to each message depending on how far statistics are from the expected values. Two kinds of ranges are used by the automatic checking: Soft and Hard limits. Soft limits are updated automatically using statistics from the last twenty days (extremes are excluded during this process). Hard limits are adjusted manually when required.

Currently, the automatic checking is limited to data passing through the minimisation process (including VarBC passive data). It's being applied twice a day to the delayed cut-off 4D-VAR cycles (00 and 12) and four times a day to the early delivery assimilation system (00,06,12 and 18).

The alarm system results are based on feedback information from the ECMWF data assimilation and consequently reflect the ECMWF data usage. Although most warnings are related to data problems, they may on occasion also be related to model issues. Alerts are provided for information on an as-is basis and may be withdrawn or changed without notice. ECMWF accepts no responsibility for actions taken on the basis of these results.

Delayed cut-off 4DVAR at 2020-07-10 00:00

mhs
NOAA-19 MHS ALLSKY RADIANCES CHANNEL 4 : out of range
Considerable: obs_number=9207.0000, expected range: 10156.6781 12383.4469
NOAA-19 MHS ALLSKY RADIANCES CHANNEL 5 : out of range
Considerable: obs_number=8695.0000, expected range: 9599.2725 11705.2275
saphir
All MEGHA-TROPIQUES SAPHIR ALLSKY ALL CHANNELS Global : all data missing
Severely_persistent: obs_number=0, expected range: 431.72 16887.26
gpsro
All KOMPSAT-5 GPSRO SETTING ALL HEIGHTS Global : all data missing
Severe: obs_number=0, expected range: 286.49 1219.04
resat
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 1-2 (HPA) : out of range
17 times in the last 10 days for at least one item
Severely_persistent: stdev_fgdepar=0.0222, expected range: 0.0023 0.0131
NOAA-19 SBUV OZONE, TOP PRESSURE LAYER 20-21 (HPA) : out of range
23 times in the last 10 days for at least one item
Slight: avg_fgdepar=-0.0424, expected range: -0.0404 -0.0333
Radiosondes
LAND TEMP TEMPERATURE (K) 61660 PRESSURE LAYER 0-300 (HPA) : out of range
12 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-28.2552, expected range: -62.2064 48.6352
Severely_persistent: rms_fgdepar=30.2367, expected range: -36.1787 45.6271
HIGH RESO LAND TEMP TEMPERATURE (K) (2 pressure layers affected) : missing
8 times in the last 10 days for at least one item
Severely_persistent: obs_number=0.0000, expected range: 0.0000 410.3228
Severely_persistent: obs_number=0.0000, expected range: 59.2013 375.4745
LAND TEMP TEMPERATURE (K) 44373 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=8.3869, expected range: 0.0170 4.4254
LAND TEMP TEMPERATURE (K) 60715 PRESSURE LAYER 0-300 (HPA) : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=12.4378, expected range: -24.6431 29.2365
Severe: rms_fgdepar=12.4378, expected range: -21.7064 28.0889
Severe: avg_pge=0.8536, expected range: -1.6902 0.7500
LAND TEMP TEMPERATURE (K) 72318 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=6.2718, expected range: 0.7141 2.5883
LAND TEMP TEMPERATURE (K) PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=5.3164, expected range: 0.7261 2.8134
LAND TEMP Q (G/KG) 28951 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.6524, expected range: 0.0000 1.4179
LAND TEMP Q (G/KG) 23933 PRESSURE LAYER 600-900 (HPA) : out of range
Severe: rms_fgdepar=2.6486, expected range: 0.0000 1.3771
LAND TEMP Q (G/KG) 64700 PRESSURE LAYER 900-1200 (HPA) : out of range
Severe: rms_fgdepar=6.0473, expected range: 0.0000 13.6837
HIGH RESO LAND TEMP TEMPERATURE (K) (3 pressure layers affected) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 44.4225 1157.8541
Severe: obs_number=0.0000, expected range: 172.0901 197.9099
Severe: obs_number=0.0000, expected range: 172.0901 197.9099
HIGH RESO LAND TEMP WIND VECTOR DIFF (M/S) 53845 PRESSURE LAYER 0-300 : out of range
Severe: avg_fgdepar=20.2655, expected range: -0.1579 4.4636
Severe: rms_fgdepar=20.6690, expected range: 0.0000 5.3048
HIGH RESO LAND TEMP Q (G/KG) (2 pressure layers affected) : missing
1 times in the last 10 days for at least one item
Severe: obs_number=0.0000, expected range: 25.6379 324.8502
amdar
WIGOS AMDAR TEMPERATURE (K) EU0758 PRESSURE LAYER 0-300 (HPA) : out of range
Severe: avg_pge=0.8494, expected range: 0.7655 0.7500
WIGOS AMDAR WIND VECTOR DIFF (M/S) EOGWUWJA PRESSURE LAYER 0-300 (HPA) : out of range
Severe: rms_fgdepar=21.0702, expected range: 0.0000 9.7421
WIGOS AMDAR Q (G/KG) BPZGUWRA PRESSURE LAYER 900-1200 (HPA) : out of range
4 times in the last 10 days for at least one item
Severe: rms_fgdepar=7.4371, expected range: 0.0000 11.7504
WIGOS AMDAR Q (G/KG) GRBWUUZA PRESSURE LAYER 900-1200 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=6.0232, expected range: 0.0000 9.1301
pilot
LAND PILOT WIND VECTOR DIFF (M/S) 48870 PRESSURE LAYER 300-600 (HPA) : out of range
1 times in the last 10 days for at least one item
Severe: avg_pge=0.8646, expected range: -0.9495 0.7500
synop
BUFR LAND SYNOP SURFACE PRESSURE (PA) 72494 : out of range
5 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8226, expected range: 0.7461 0.7500
BUFR LAND SYNOP SURFACE PRESSURE (PA) 12215 : out of range
15 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=625.0744, expected range: -1595.3464 1380.8782
Severely_persistent: rms_fgdepar=625.6935, expected range: 0.0000 1291.5622
AUTOMATIC LAND SYNOP RH2M (%) 40592 : out of range
Severe: rms_fgdepar=42.3069, expected range: 0.0000 12.1589
AUTOMATIC LAND SYNOP RH2M (%) 40594 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=35.5762, expected range: 0.0000 17.8834
AUTOMATIC LAND SYNOP RH2M (%) 68335 : out of range
Severe: rms_fgdepar=33.7146, expected range: 0.0000 10.1903
AUTOMATIC LAND SYNOP SURFACE PRESSURE (PA) 89577 : out of range
Severe: avg_fgdepar=524.2361, expected range: -600.2429 440.5189
Severe: rms_fgdepar=524.2361, expected range: 0.0000 504.5607
Severe: avg_pge=0.8529, expected range: -0.6329 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 41697 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8406, expected range: -0.9651 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 42588 : out of range
Severe: rms_fgdepar=368.3432, expected range: 0.0000 242.5225
Severe: avg_pge=0.8320, expected range: -1.1287 0.7500
MANUAL LAND SYNOP SURFACE PRESSURE (PA) 43359 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8224, expected range: -1.1474 0.7500
BUFR LAND SYNOP RH2M (%) 93791 : out of range
Severe: rms_fgdepar=47.3530, expected range: 0.0000 22.9704
Severe: avg_pge=0.8601, expected range: -0.0017 0.0083
BUFR LAND SYNOP RH2M (%) 48048 : out of range
Severe: rms_fgdepar=36.7719, expected range: 0.0000 18.9270
BUFR LAND SYNOP SURFACE PRESSURE (PA) 24802 : out of range
Severe: rms_fgdepar=606.8587, expected range: 0.0000 283.5973
BUFR LAND SYNOP SURFACE PRESSURE (PA) 28766 : out of range
Severe: rms_fgdepar=395.9358, expected range: 0.0000 174.0895
BUFR LAND SYNOP SURFACE PRESSURE (PA) 86086 : out of range
Severe: rms_fgdepar=428.1454, expected range: 0.0000 200.1726
BUFR LAND SYNOP SURFACE PRESSURE (PA) 04097 : out of range
Severe: rms_fgdepar=317.8695, expected range: 0.0000 129.7604
BUFR LAND SYNOP SURFACE PRESSURE (PA) 29638 : out of range
Severe: rms_fgdepar=348.1218, expected range: 0.0000 169.2855
ship
BUFR SHIP SYNOP SURFACE PRESSURE (PA) C6DQ4 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-825.8688, expected range: -1311.4711 768.6466
Severely_persistent: rms_fgdepar=825.8688, expected range: 0.0000 1614.6862
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) AUBC : out of range
10 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.9118, expected range: 0.7565 0.7500
SHIP SURFACE PRESSURE (PA) 9V7632 : out of range
Severe: avg_fgdepar=665.3246, expected range: -1919.2009 2763.8378
Severe: rms_fgdepar=665.3246, expected range: 0.0000 1420.9374
SHIP SURFACE PRESSURE (PA) C6DQ4 : out of range
4 times in the last 10 days for at least one item
Severe: avg_fgdepar=-825.8688, expected range: -1660.5267 1248.1048
Severe: rms_fgdepar=825.8688, expected range: 0.0000 1709.4660
BUFR SHIP SYNOP SURFACE PRESSURE (PA) 9V7632 : out of range
Severe: avg_fgdepar=720.5078, expected range: -1919.2009 2763.8378
Severe: rms_fgdepar=722.6179, expected range: 0.0000 1420.9374
BUFR SHIP SYNOP SURFACE PRESSURE (PA) OWJG2 : out of range
Severe: avg_fgdepar=836.2495, expected range: -1027.5713 831.9266
Severe: rms_fgdepar=836.2495, expected range: 0.0000 614.9435
Severe: avg_pge=0.8745, expected range: -0.6897 0.7500
BUFR SHIP SYNOP SURFACE PRESSURE (PA) D5CN5 : out of range
1 times in the last 10 days for at least one item
Severe: avg_fgdepar=548.8458, expected range: -588.1518 265.2838
Severe: rms_fgdepar=548.8458, expected range: 0.0000 588.1518
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) EUCDE37 : out of range
3 times in the last 10 days for at least one item
Severe: avg_fgdepar=22.3972, expected range: -1.5355 35.5520
Severe: rms_fgdepar=22.3972, expected range: 6.1036 29.9340
Severe: avg_pge=0.9220, expected range: -0.0084 0.7500
BUFR SHIP SYNOP WIND VECTOR DIFF (M/S) KVMU : out of range
Severe: rms_fgdepar=15.2777, expected range: 0.0000 11.5154
Severe: avg_pge=0.8790, expected range: -0.9934 0.7500
All BUFR SHIP SYNOP WMO BLOCK 41 : all data missing
Severe: obs_number=0, expected range: 283.28 326.15
All BUFR SHIP SYNOP WMO BLOCK 42 : all data missing
Severe: obs_number=0, expected range: 233.75 356.82
All BUFR SHIP SYNOP WMO BLOCK 51 : all data missing
Severe: obs_number=0, expected range: 75.07 125.07
buoy
DRIFTING BUOYS SURFACE PRESSURE (PA) 1501749 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_pge=0.8172, expected range: 0.3132 0.7500
DRIBU SURFACE PRESSURE (PA) 23491 : out of range
2 times in the last 10 days for at least one item
Severe: avg_pge=0.8079, expected range: -0.3050 0.7500
MOORED BUOYS WIND VECTOR DIFF (M/S) 2200189 : out of range
4 times in the last 10 days for at least one item
Severe: avg_pge=0.9239, expected range: -0.5057 0.7500
All MOORED BUOYS WMO BLOCK 32 : all data missing
Severe: obs_number=0, expected range: 21.28 196.33
All MOORED BUOYS South West Pacific : all data missing
Severe: obs_number=0, expected range: 38.02 265.79
DRIFTING BUOYS SURFACE PRESSURE (PA) 1601531 : out of range
Severe: rms_fgdepar=303.7858, expected range: 0.0000 100.4203
DRIFTING BUOYS SURFACE PRESSURE (PA) 1701529 : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=499.2733, expected range: 0.0000 171.8568
Severe: avg_pge=0.8898, expected range: -0.2011 0.2391
metar
AUTOMATIC METAR SURFACE PRESSURE (PA) KDBQ : out of range
Severe: rms_fgdepar=308.5765, expected range: 0.0000 83.9540
snow
AUTOMATIC LAND SYNOP SNOW (CM) 01035 : out of range
8 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=88.0928, expected range: 83.2912 130.7782
Severely_persistent: rms_fgdepar=88.0928, expected range: 83.2912 130.7782
BUFR LAND SYNOP SNOW (CM) 01035 : out of range
38 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=89.0085, expected range: 82.5606 129.2333
Severely_persistent: rms_fgdepar=89.0123, expected range: 82.5669 129.2324
BUFR LAND SYNOP SNOW (CM) : out of range
2 times in the last 10 days for at least one item
Severe: rms_fgdepar=63.0781, expected range: 2.1511 3.8875
t2m
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 89734 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8176, expected range: 0.7674 0.8865
MANUAL LAND SYNOP 2M TEMPERATURE (K) 87405 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=18.6104, expected range: -6.2479 16.0127
Severely_persistent: rms_fgdepar=18.6104, expected range: 0.0000 14.6851
Severely_persistent: avg_est_pge=0.8868, expected range: 0.0966 1.0546
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89606 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8199, expected range: 0.1214 1.1740
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89009 : out of range
7 times in the last 10 days for at least one item
Severely_persistent: avg_est_pge=0.8155, expected range: 0.1606 1.1390
BUFR LAND SYNOP 2M TEMPERATURE (K) 87405 : out of range
9 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=18.5604, expected range: -6.1923 16.5595
Severely_persistent: rms_fgdepar=18.5604, expected range: 0.0000 15.3521
Severely_persistent: avg_est_pge=0.8865, expected range: 0.0969 1.0579
BUFR LAND SYNOP 2M TEMPERATURE (K) 27415 : out of range
28 times in the last 10 days for at least one item
Severely_persistent: avg_fgdepar=-15.1122, expected range: -21.8979 -12.5752
Severely_persistent: rms_fgdepar=15.2752, expected range: 12.7762 21.7739
AUTOMATIC LAND SYNOP 2M TEMPERATURE (K) 68817 : out of range
1 times in the last 10 days for at least one item
Severe: rms_fgdepar=10.4734, expected range: 0.0000 4.2435
MANUAL LAND SYNOP 2M TEMPERATURE (K) 89504 : out of range
1 times in the last 10 days for at least one item
Severe: avg_est_pge=0.8029, expected range: -0.0757 1.1334
rh2m
MANUAL LAND SYNOP RH2M (%) 89532 : out of range
Severe: rms_fgdepar=32.1110, expected range: 0.0000 17.5253